Current Amputees News and Events

Current Amputees News and Events, Amputees News Articles.
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New surgery may enable better control of prosthetic limbs
MIT researchers in collaboration with surgeons at Harvard Medical School have devised a new type of amputation surgery that can help amputees better control their residual muscles and receive sensory feedback. This restored sense of proprioception should translate to better control of prosthetic limbs, as well as reduction of limb pain, the researchers say. (2021-02-15)

Textile sensor patch could detect pressure points for amputees
A soft, flexible sensor system created with electrically conductive yarns could help map problematic pressure points in the socket of an amputee's prosthetic limb, researchers from North Carolina State University report in a new study. (2021-02-02)

Perceiving prosthesis as lighter thanks to neurofeedback
Transmitting sensory signals from prostheses to the nervous system helps leg amputees to perceive prosthesis as part of their body. While amputees generally perceive their prostheses as heavy, this feedback helps them to perceive the prostheses as significantly lighter, ETH researchers have shown. (2021-01-08)

How thoughts could one day control electronic prostheses, wirelessly
The current generation of neural implants record enormous amounts of neural activity, then transmit these brain signals through wires to a computer. But, so far, when researchers have tried to create wireless brain-computer interfaces to do this, it took so much power to transmit the data that the implants generated too much heat to be safe for the patient. A new study suggests how to solve his problem -- and thus cut the wires. (2020-08-04)

Phantom-limb pain reduced through brain power
Osaka University researchers have used a brain-computer-interface to reduce phantom-limb pain after only three days of training. In a random crossover trial, patients with phantom-limb pain used brain power related to their intact hand to open and close a virtual hand. Reduction in phantom-limb pain after three days of training remained significant five days after training was complete. (2020-07-16)

Space station motors make a robotic prosthetic leg more comfortable, extend battery life
A new robotic prosthetic leg prototype offers a more natural gait while also being quieter and more energy efficient than other designs. (2020-07-15)

The feeling a limb doesn't belong is linked to lack of brain structure and connection
People with body integrity dysphoria (BID) often feel as though one of their healthy limbs isn't meant to be a part of their bodies. They may act as though the limb is missing or even seek its amputation 'to feel complete.' Now, researchers reporting in the journal Current Biology on May 7, 2020 have found that these feelings that a limb doesn't belong are mirrored in the brains of people with this condition. (2020-05-07)

New brain reading technology could help the development of brainwave-controlled devices
A new method to accurately record brain activity at scale has been developed by researchers at the Crick, Stanford University and UCL. The technique could lead to new medical devices to help amputees, people with paralysis or people with neurological conditions such as motor neurone disease. (2020-03-20)

Regenerative nerve interface enhances precision and durability of hand prostheses
Researchers have found that a new nerve interface technology endows upper limb amputees with greater control and precision when using prosthetic hands. (2020-03-04)

For 'blade runners' taller doesn't necessarily mean faster
The governing body for the Paralympics recently lowered the allowable height for sprinters who use prosthetic legs, or blades, during competition. The rules are based on the assumption that the taller you are the faster you run. But a new study has found otherwise. (2020-02-20)

Electronics integrated to the muscle via 'Kirigami'
A research team in the Department of Electrical and Electronic Information Engineering and the Electronics-Inspired Interdisciplinary Research Institute (EIIRIS) at Toyohashi University of Technology has developed a donut-shaped kirigami device for electromyography (EMG) recordings. The proposed device reduces device displacement on a large deformable muscle surface. Accurate and robust EMG recordings offer EMG signal-based human-machine interfaces which allow prosthesis control for amputees. (2019-12-09)

Recovery from years of inactivity requires focusing on doing resistance exercises rapidly
Several years of hospitalisation, one example of muscle inactivity, causes a disproportionate decline in the muscle strength known to affect balance, increase the risk of joint injuries, and hinder movements involved in sports. That's according to research from the University of Roehampton, published today in Experimental Physiology. (2019-11-26)

Talk to the hand
Fans of the blockbuster movie 'Iron Man 3' might remember the characters step inside the digital projection of a 'big brain' and watch as groups of neurons are 'lit up' along the brain's neural 'map' in response to physical touch. Now, much like that scene, researchers at the University of Missouri have discovered a new insight into how the complex neural map of the human brain operates. (2019-11-05)

How skin cells from foot soles could help relieve amputees of stump injury
Imperial scientists hope to re-engineer stump skin for more comfortable prosthetics -- using skin from the sole of the foot as a template. (2019-10-10)

Leg amputees feel and use the prosthesis as a real limb
The bionic prosthesis is perceived, by the brain of three leg amputees, as a real limb, allowing them to avoid falls while walking over obstacles without seeing them, climb stairs much faster and to finely place the feet in the space. Volunteers felt sensations from multiple positions of the foot when touched and knee movements. The prosthetic leg speaks to the brain through a wireless link with the nerves in the upper leg of subjects. (2019-10-02)

Nerve-stimulating leg prosthesis improves movement and functionality in amputees
A research team has created a leg prosthesis for lower leg amputees that incorporates advanced neural stimulation, allowing it to recreate sensations of touch in the knee and foot that are missing in conventional prosthetic designs. (2019-10-02)

Amputees merge with their bionic leg
In an international collaboration led by scientists in Switzerland, three amputees merge with their bionic prosthetic legs as they climb over various obstacles without having to look. The amputees report using and feeling their bionic leg as part of their own body, thanks to sensory feedback from the prosthetic leg that is delivered to nerves in the leg's stump. (2019-10-02)

A smart artificial hand for amputees merges user and robotic control
EPFL scientists have successfully tested new neuroprosthetic technology that combines robotic control with users' voluntary control, opening avenues in the new interdisciplinary field of shared control for neuroprosthetic technologies. (2019-09-11)

Foot painters' toes mapped like fingers in the brain
Using your feet like hands can cause organized 'hand-like' maps of the toes in the brain, never before documented in people, finds a new UCL-led study of two professional foot painters, published in Cell Reports. (2019-09-10)

Feeling legs again improves ampu-tees' health
Two volunteers are the first above-knee amputees in the world to feel their prosthetic foot and knee in real time. Their bionic prosthesis, which was devel-oped by an international team of researchers, features sensors that connect to residual nerves in the thigh. The resulting neurofeedback greatly reduces physical and mental strain for users of the prosthesis, as well as their phantom limb pain, while increasing their confidence and speed when walking. (2019-09-09)

Optic nerve stimulation to aid the blind
EPFL scientists are investigating new ways to provide visual signals to the blind by directly stimulating the optic nerve. Their preliminary study uses a new type of neural electrode and provides distinct signals. (2019-08-19)

Tailor-made prosthetic liners could help more amputees walk again
Researchers at the University of Bath have developed a new way of designing and manufacturing bespoke prosthetic liners, in less than a day. (2019-06-20)

First step towards a better prosthetic leg? Trip people over and over
The first step a Vanderbilt team took in addressing a challenge in lower-body prosthetics was coming to understand the way people with two legs catch themselves, accomplished by covering test subjects with motion-capturing sensors. (2019-06-19)

Phantom limb sensation explained
After a limb amputation, brain areas responsible for movement and sensation alter their functional communication. This is the conclusion of a new study published today in Scientific Reports. According to the authors, from the D'Or Institute for Research and Education (IDOR) and Federal University of Rio de Janeiro (UFRJ), the findings may help to understand why some patients report phantom sensations and others do not. (2019-02-21)

A prosthetic that restores the sense of where your hand is
Researchers have developed a next-generation bionic hand that allows amputees to regain their proprioception. The results of the study, which have been published in Science Robotics, are the culmination of ten years of robotics research. (2019-02-20)

Brain hand 'map' is maintained in amputees with and without phantom limb sensations
Researchers have found that the brain stores detailed information of a missing hand decades after amputation, regardless of whether amputees still experience phantom hand sensations. (2019-02-05)

Rerouting nerves during amputation reduces phantom limb pain before it starts
Doctors have found that a surgery to reroute amputated nerves, called targeted muscle reinnervation, or TMR, can reduce or prevent phantom or residual limb pain from ever occurring in amputee patients who receive the procedure at the time of amputation. (2018-12-27)

A prosthetic arm that decodes phantom limb movements
About 75 percent of amputees exhibit mobility of their phantom limb. Using this information, in collaboration with physicians, researchers from CNRS and Aix-Marseille University have developed a prototype capable of detecting these movements and activating a prosthetic arm. The prosthesis does not require any surgery and patients do not need training. The results are published on Nov. 29, 2018 in Frontiers in Bioengineering and Biotechnology. (2018-11-29)

Artificial joint restores wrist-like movements to forearm amputees
A new artificial joint restores important wrist-like movements to forearm amputees, something which could dramatically improve their quality of life. A group of researchers led by Max Ortiz Catalan, Associate Professor at Chalmers University of Technology, Sweden, have published their research in the journal IEEE Transactions on Neural Systems & Rehabilitation Engineering. (2018-11-28)

Cranking up the power setting may help some who use prosthetics
Amputees who use powered prosthetic ankles may be able to avoid the energetic costs typically associated with prosthetics by cranking up the power provided by their devices. (2018-11-08)

Nerve-on-a-chip platform makes neuroprosthetics more effective
EPFL scientists have developed a miniaturized electronic platform for the stimulation and recording of peripheral nerve fibers on a chip. By modulating and rapidly recording nerve activity with a high signal-to-noise ratio, the platform paves the way to using chips to improve neuroprosthetic designs. (2018-10-23)

UTA researchers patent technology for smart seat cushion, adaptable prosthetics
The University of Texas at Arlington has patented a smart seat cushion that uses changes in air pressure to redistribute body weight and help prevent the painful ulcers caused by sitting for long periods of time in a wheelchair. The same technology can be used to create prosthetic liners that adapt their shape to accommodate changes in body volume. (2018-09-20)

Amputees feel as though their prosthetic limb belongs to their own body
In a breakthrough approach that combines virtual reality and artificial tactile sensations, two amputees feel as though their prosthetic hand belongs to their own body. Moreover, the scientists show that the phantom limb actually grows into the prosthetic hand. (2018-08-13)

Marshall University research offers insights into nervous system control of leg movements
New research from a team at Marshall University Joan C. Edwards School of Medicine gives unexpected insights into how the nervous system controls leg movements in walking. These findings could aid in directing rehabilitation in stroke patients as well as the design of artificial, or prosthetic, legs. (2018-08-09)

New technology enables man to hold his granddaughter again
In the first known study of how amputees use advanced sensory-enabled prostheses outside the lab, subjects used a mechanical hand more regularly and for longer periods of time compared to traditional prostheses--and also reported a greater sense of psychosocial well-being. The study also asserts that sensory feedback fundamentally changed how the study participants used their mechanical attachment, ''transforming it from a sporadically used tool into a readily and frequently used 'hand.''' (2018-06-29)

Low-cost prosthetic foot mimics natural walking
MIT engineers have developed a simple, low-cost, passive prosthetic foot that they can tailor to an individual. Given a user's body weight and size, the researchers can tune the shape and stiffness of the prosthetic foot, such that the user's walk is similar to an able-bodied gait. They estimate that the foot, if manufactured on a wide scale, could cost an order of magnitude less than existing products. (2018-06-28)

New 'e-dermis' brings sense of touch, pain to prosthetic hands
Engineers have created an electronic 'skin' in an effort to restore a real sense of touch for amputees using prosthetics. (2018-06-20)

An artificial nerve system gives prosthetic devices and robots a sense of touch
Stanford and Seoul National University researchers have developed an artificial nervous system that could give prosthetic limbs or robots reflexes and the ability to sense touch. (2018-05-31)

Muscle vibrations improve control over prosthetic hands
An automated brain-computer interface that vibrates the muscles used for control of prosthetic hands helped three amputees gain better movement control over the prosthetic, according to a new study by Paul Marasco and colleagues. (2018-03-14)

Prosthetic limbs represented like hands in brain
The human brain can take advantage of brain resources originally devoted to the hand to represent a prosthetic limb, a new UCL-led study concludes. (2018-03-08)

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